5051021121 has 12 divisors (see below), whose sum is σ = 7344238720. Its totient is φ = 3345046200.

The previous prime is 5051021119. The next prime is 5051021149. The reversal of 5051021121 is 1211201505.

It is not a de Polignac number, because 5051021121 - 2¹ = 5051021119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5051021094 and 5051021103.

It is not an unprimeable number, because it can be changed into a prime (5051021221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1857001 + ... + 1859718.

Almost surely, 2^5051021121 is an apocalyptic number.

It is an amenable number.

5051021121 is a deficient number, since it is larger than the sum of its proper divisors (2293217599).

5051021121 is a wasteful number, since it uses less digits than its factorization.

5051021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716876 (or 3716873 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 5051021121 is about 71070.5362368964. The cubic root of 5051021121 is about 1715.7726003542.

Adding to 5051021121 its reverse (1211201505), we get a palindrome (6262222626).

It can be divided in two parts, 50510 and 21121, that added together give a triangular number (71631 = T₃₇₈).

The spelling of 5051021121 in words is "five billion, fifty-one million, twenty-one thousand, one hundred twenty-one".